Apparatus for treating gas-puriying materials.



No. 833,114. PATENTED OCT. 9, 1906.

J. J.V M. BGIGNEUL. APPARATUS FOR TREATING GAS PURIPYING MATERIALS.

APPLICATION FILD MAY 15, 1906.

WM @ASMA i sulfur isr disso ve UNITED sTATEs PATENT oEEIoE.

l JosEPEJULEs MARIE BECIGNEUL, or NANTES,FRANCE.l APPAR-ATUS FOR TREATING GAS-PURIFY-ING MATERIALS.

Specification of Letters Patenft.

Patented Oct. 9, 1906.

l v Original application filed July 19,1905, Serial No. 270,374. Divided and this application iiled May 15, 1906. Serial No. 316,994-

To all-whom t may concern:

\ Be it known that I, JOSEPH JULES MARIE BCIGNEUL, a citizen of the French Republic, residing in Nantes, Loire Inferieure,

France, have invented certain new and useful Improvements in Apparatus for Treating Gas-Purifyingl Materials, of which the following is a description.

This invention, 'which is division of my application iiled July` 19, 1905, under Serial No. 270,374, relates to an apparatus'for carrying out in an economical and effective manner the process described in my said application for treating the spent material used in purifying gas, with the view mainly of extracting'and recovering the sulfur contained therein. i

In the accompanyin' drawings, which serve to illustrate an emgbodiment of the invention, Figure 1 is a generalview of the apparatus seen in vertical section, and Fig. 2 is an enlarged cross-section of either of the fiattened condensin -pipes 29 or 30.

In order that t e present invention may be the betterv understood, stated that in the process of recovering the sulfur from spent as-puritying materials the I out' of the material with the aido tol ene, or, by preference, a mixture of toluene and carbon tetrachlorid, with the aid of heatpthe sulfur being afterward precipitated from its solution, and as toluene isa volatile liquid the present apparatus provides for filtering and recovering it, so that it may be used again with very little loss.

The apparatus and its operation will now be described.

1 is a tightheating-reservoir for the liquid solvent. It is heated by a steam-coil 2, supplied by a pipe 3 `from any steam-generator.

4 is the receptacle to contain the materialv to be treated. This receptacle is provided with a steam-jacket 5, from the pipe 3 by a branc pipe, and it vreceives the heated solvent from the reservoir 1 through a pipe 6, which enters the receptacle 4 at the bottom. The cover 7 of the receptacle 4 is removable. At the required time during the operation, the admission of the solvent being cut off by a cock in the pipe 6, steam is admitted at 8 to the ipe 6 and supplied thence to the ieceptac e 4. The

vaporized Asolvent from the receptacle mixed with steam passes off throu h a'pi e 9 to a coil in a condenser 10 and tence y a pipe 11 down to a separator' 12, where the water provided "with a valve 25.

it may be briefly supplied with steam separates by gravity, and the toluene is led This tank 16 is alsoprovided wit an inlet- 19, at which is introduced animal charcoal or bone-black, which is mixed with the solventby means of the, agitator and absorbs the tars carried in by the solvent. This clear liquid when freed from the tars is drawn oiT by a pipe 20 into a iilter 2]., inclosed in a vessel 22, heated by a steam-jacket 23. The vessel 22 is provided with a cover 24, removable for chargin the iilter., The muddy liquid is drawn oil om 16 through a lower pipe After passing through the lter 21 the filtered liquid flows through an outlet-pipe at the bottom of the lter into a precipitating device below the iilten This device 'consists of a tank 26,

through which cold water flows upward from an inlet 27 to an outlet 28. Immersed in the water is a V-shapedconduit composed of two attened pipes 29 and 30, (see also Fig. 2,)V

connected attheir junction by a holder 31. The hot solvent charged withsulur enters the higher end of the 36. The liquid solvent collected in the reser-' voir 14 is pumped up by a pump 37 to the upper holder'l through a pipe 38.

Suitable pipes 39 connecty the res ective containers ofthe ap aratus and equa ize the pressure therein. he separator 12 is furpipe 29, and in flowing down through the conduit the sulfur is pre- IOO n ished with a cock-controlled outlet 40 to draw ol" the sludge that accumulates in the bottom of the same. The header 31-e`nables one toget'access to the pipes 29 and 30 for ins ection and cleaning;

he construction described permits of recovering practically all of the volatile solvent v inpure state, so that it may be employed continuously.

IIO

Obviously suitable cocks will be provided in the various pipes where needed, and obviously some variation in the construction and arrangement of the parts is admissible without departing materlally from the invention.

Having thus described my invention, I claimv 1. in an `apparatus for extracting sulfur from spent gas-purifying material, a receptacle to contain the material treated, said receptacle `having a removable cover, an inlet at the bottom for hot liquid solvent and steam, and an outlet at the top for vapors, a mixer to purify the solvent, provided with an agitator, a pipe connecting said receptacle with the mixer, a lilter, pipes atdifferent levels connecting the mixer with said filter,l a precipitating device, comprising a watertank and a conduit therein composed of flattened and inclined pipes immersed in the water, saidvconduit being connected at its up- 'er, receiving end with the bottom of the ter, a strainer, with which the ylower discharging end of the said conduit connects, a reservoir for the solvent, a ipe connecting the bottom of the strainer wit said reservoir,

a vapor-condenser, a pipe connecting the vapor-outlet of the receptacle for the materials with said condenser, a se arator, a pipe connecting the condenser wit saidseparator, and

a' ipeconnecting the separator with said lis so vent-reservoir.

2. in an apparatus for extracting sulfur from spent gas-purifying material, a heatingreservoir 1 tor the liquid solvent, a close receptacle llfor the material to be treated, said receptacle being below the level of the reservoir 1 and provided atits bottom with an infor admitting solvent and steam to said receptacle, a jacket 5 for said receptacle 4, a

` close mixing-vessel 16 below the level of the' receptacle 4, and provided with'an agitator, and'steam-jacket, a iilter 21 below ythe level of the mixer and. rovided with a steamjacket, pipes at di erent levels for drawing the contents of the mixer into the filter, avessel 22 inclosing the filter, a precipitating device below the filter and comprismg a watertank 26 having means for continuouslyT supplying water thereto, and a tlf-shaped conduit com osed of the pipes 29, and 30, said conduit -eing connected at its upper end with the filter, a strainer 32, connected with the lower end of said conduit, a reservoir 14 below the level ofthe strainer',a pipe 34 connecting the latter with the reservoir 14, a

pipe 38 connecting the reservoirs 14 and 1, a ump 37 for forcing the liquid through 38 om the lower to the higher reservoir, a condenser 10, a pi e 9 connecting the vapor-outlet of 4 with t econdenser, a se ara-tor 12, below the condenser and provi ed with a sludge-outlet 40, a pipe 11 connecting the condenser with the separator, a pipe connecting the separator with the reservoir 14, steampipes to supply steam, and pressure-equalizing pipes connecting the closed containers.

n witness whereof l have hereunto signed my name, this 17th day of April, 1906,1in the presence of two subscribing witnesses.

JOSEPH .lUlillS lllRlE BClGNEUlJ. Witnesses: v

HrrroLYrn BcreNnUL, lvns Ln Mnrennn. 

